Children's Coloring Book Cover Illustration

I'm creating a coloring book for children aged 2-5, inspired by my young family members. The inside is complete, and I need an illustrator for a few cover variations for this square-format book (8.5 x 8.5 inches). I'll provide reference images, including my initial cover attempts and the book's actual illustrations.

Style Preferences:
- Coloring style mimicking colored pencils: natural texture, visible strokes, soft pastel tones.
- No text in the illustration, only banner space.
- Characters with peaceful, gentle expressions (closed eyes preferred).
- Style must closely match my illustrations (reference will be provided).

Design Requirements:
- Incorporate natural elements: trees, flowers, animals, birds, sun, and clouds.
- Main focus on characters from the book.
- Simple background.

Ideal Skills and Experience:
- Proficiency in creating children's book illustrations.
- Experience with colored pencil textures and pastel color palettes.
- Strong attention to character expressions and gentle atmospheres.
- Ability to replicate a provided illustration style closely.

Looking for someone who can bring a serene and playful vision to life!